Siemens QF120AHH GFCI Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
Siemens QF120AHH - 20A GFCI Miniature Circuit Breaker
New
Quantity
Description
Rated for an extra-high 65kAIC at 120V, this single-pole 20A ground-fault interrupter provides 5mA Class A protection for wet or damp locations. It installs into Siemens EQ, ES, PL, and Ultimate load centers using a standard plug-on connection and pigtail neutral wire. Meeting NEC requirements for residential and commercial spaces, the unit features self-testing capabilities and is HACR and SWD rated. Note that this specific model has been replaced by the newer Q120GFHH version.Specifications
| Brand | Siemens |
|---|---|
| Series | QF |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens EQ, ES, PL, Ultimate Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Extra High Interrupting Capacity, Self-Test |
Product FAQs
5 answersWhich load centers are compatible with the Siemens QF120AHH circuit breaker?
This breaker is designed for use in Siemens EQ, ES, PL, and Ultimate load centers that accept plug-on Q-frame breakers.
What is the difference between the Siemens QF120A, QF120AH, and QF120AHH?
The difference is the interrupting rating. The standard QF120A is rated at 10kAIC, the QF120AH is rated at 22kAIC, and the QF120AHH offers an extra-high 65kAIC rating at 120VAC.
How do I wire the pigtail neutral on the QF120AHH?
The white pigtail wire must be connected directly to the neutral bus bar in your load center. This connection is required to power the internal ground fault circuitry of the breaker.
What level of ground fault protection does the QF120AHH provide?
This breaker provides Class A ground fault protection. It is designed to trip when a ground fault of 5mA is detected, ensuring personnel safety in wet or damp locations as required by the NEC.
Can I use the QF120AHH to replace a standard 20A single-pole breaker?
Yes, it can replace a standard 20A Siemens QP breaker to add ground fault protection to an existing circuit, provided there is space to land the neutral pigtail on the panel neutral bus.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 22 reviews.
- TSTHOMAS S.Verified BuyerReviewingSiemens QF220 - 20A GFCI Miniature Circuit BreakerI do not recommend this productRated 2 out of 5 stars3/30/26Double check correct version
I received the Q220”A” version. Superbreaker was easy to work with for a return.
- KHKarmen H.ReviewingSiemens QF120A - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/31/23Very happy
I am a small contractor in MN and when I get to the hard to find or not readily available in out are I always turn to SuperBreakers, for great selection and quick shipping.
- KHKarmen H.ReviewingSiemens QF115A - 15A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/31/23Breaker
I am a small contractor in MN and when I get to the hard to find or not readily available in out are I always turn to SuperBreakers, for great selection and quick shipping.
- JHJeff H.ReviewingSiemens QF120AN - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/26/23all good
all good
- DBDean B.ReviewingSiemens QF130 - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/25/22Master Electrician
Lets me keep this short and simple.. Order from Super Breakers and you won’t be disappointed!!
Thank you for your business Super Breakers!